WHITBY -- An Ajax woman has testified she was lied to and terrorized by a man now fighting a Crown application to have him jailed indefinitely.

Robert Dean May, who gained notoriety as a jailhouse snitch in the wrongful conviction of Guy Paul Morin, is the opposite of the honest and caring man he claims to be said the woman, who was forcibly confined and assaulted by Mr. May after he broke into her home in July 2005.

"Everything he portrayed himself to be he wasn't. He was the opposite of what he said," the woman testified at the outset of a dangerous offender application being heard in Whitby by Superior Court Justice Michael Brown.

"This is his life; this is what he does to people," the woman told Crown counsel Mitchell Flagg.

"He tries to cheat people in every which way."

Mr. May was convicted by a jury in May 2006 on several counts relating to the harassment, forcible confinement and assault of the woman, whom he'd met through an Internet dating service. He has previous convictions for similar offences against two other women, in Ontario and Quebec.

The Crown has applied to have Mr. May sentenced as a dangerous offender, which means he could be jailed indefinitely, with his case coming up for review by parole officials every seven years. Mr. May, through his lawyer Brian Grys, is fighting the application.

During her testimony Monday the woman said her relationship with Mr. May has left her fearful and suspicious of other people. She said her children -- one of whom found a knife Mr. May had stashed in her home -- were left traumatized.

Mr. May had alluded to past problems with women, but always put the blame on them, the woman said. He lied about many aspects of his life, even telling her his father had died when he hadn't, she said.

Even as he deceived the woman she was loaning him money and allowing him to stay at her home, she said.

"I've never met a man who comes up with (such) outrageous stories in my life," the woman said.

"He has delusions, there's no doubt about it."

Justice Brown also heard testimony Monday from two probation officers, both of whom issued arrest warrants for Mr. May when he failed to adhere to the terms of his probation.

"Based on his reporting and lack of compliance... I would say he is not suitable for community release," said probation officer Barbara Hollyer.

Mr. May became a central figure as a Crown witness in the proceedings against Guy Paul Morin, who was accused in the mid-1980s of abducting and murdering Christine Jessop, his nine-year-old neighbour in Queensville. He testified he'd heard Mr. Morin confess to the crime while being held in the Whitby jail.

Mr. May eventually admitted he'd lied about the confession. A report by a commission probing the wrongful conviction of Mr. Morin criticized the use of testimony by jailhouse informants.

The hearing continues.